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▶
Make sure that the suction, reservoir and return lines lead into the reservoir
below the minimum fluid level in all operating conditions. This will prevent air
from being drawn in and foam from being formed.
▶
Make sure that a minimum suction pressure of 0.8 bar absolute is present at port
S during operation for all installation positions and installation locations of the
axial piston pump; see Fig. 6. See data sheet for pressure values.
1 2
0
3
1
Fig. 6: Suction pressure
1 Absolute pressure gage
2 Standard pressure gage (relative)
The suction conditions improve with below-reservoir installation.
▶
Make sure that the working environment at the installation site is fully free of
dust and foreign substances. The axial piston unit must be installed in a clean
condition. Dirt contamination in the hydraulic fluid can seriously impair the
function and service life of the axial piston unit.
▶
Use lint-free cloths for cleaning.
▶
Use suitable mild detergents to remove lubricants and other difficult-to-remove
contamination. Cleaning agents must not enter the hydraulic system.
7.3 Installation position
The following installation positions are permissible. The shown piping layout
illustrates the basic layout.
If long-life bearings are used, it is advisable to perform bearing flushing at port U.
Long-life bearings are only available for sizes 250 to 500.
0
1
-1
2
2
S
RE 92202-01-B/08.2012, A7VO Series 63, Bosch Rexroth AG
Installation
25/60
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